FreeCalypso > hg > freecalypso-tools
view rvinterf/old/before-rvinterf/openport.c @ 505:7bf0d909c87e
fc-loadtool flash ID check: change of reset after the check logic
This change only affects those flash configurations that have ID checks
enabled. The logic for resetting the flash after the ID check has been
changed as follows:
1) If the check fails, we return without attempting to reset the flash.
2) If the check is successful, we reset the flash using the configured
method (could be AMD or Intel or Intel W30) instead of always doing an
AMD flash reset as the original code did.
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Mon, 27 May 2019 19:58:01 +0000 |
parents | e7502631a0f9 |
children |
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/* * This module takes care of opening the serial port and setting the * proper "raw" termios modes, including the baud rate. */ #include <sys/types.h> #include <sys/file.h> #include <sys/ioctl.h> #include <termios.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <strings.h> #include <unistd.h> int target_fd; char *baudrate_name = "115200"; static struct baudrate { char *name; speed_t termios_code; } baud_rate_table[] = { {"19200", B19200}, {"38400", B38400}, {"57600", B57600}, {"115200", B115200}, /* non-standard high baud rates "remapped" by CP2102 usb2serial IC */ {"203125", B230400}, {"406250", B460800}, {"812500", B921600}, /* table search terminator */ {NULL, B0} }; static speed_t get_baud_rate() { struct baudrate *br; for (br = baud_rate_table; br->name; br++) if (!strcmp(br->name, baudrate_name)) break; if (!br->name) { fprintf(stderr, "baud rate \"%s\" unknown/unsupported\n", baudrate_name); exit(1); } return br->termios_code; } open_target_serial(ttydev) char *ttydev; { struct termios target_termios; speed_t br_code; br_code = get_baud_rate(); target_fd = open(ttydev, O_RDWR|O_NONBLOCK); if (target_fd < 0) { perror(ttydev); exit(1); } target_termios.c_iflag = IGNBRK; target_termios.c_oflag = 0; target_termios.c_cflag = CLOCAL|HUPCL|CREAD|CS8; target_termios.c_lflag = 0; target_termios.c_cc[VMIN] = 1; target_termios.c_cc[VTIME] = 0; cfsetispeed(&target_termios, br_code); cfsetospeed(&target_termios, br_code); if (tcsetattr(target_fd, TCSAFLUSH, &target_termios) < 0) { perror("initial tcsetattr on target"); exit(1); } return 0; } set_serial_nonblock(state) int state; { ioctl(target_fd, FIONBIO, &state); }